取决于应用程序复杂性，或许可以开发一个使用元数据描述授权规则的自定义框架，以自动将安全更改应用到SQL。
Depending on the application complexity, it may be feasible to develop a custom framework that USES metadata to describe authorization rules and applies security changes to the SQL automatically.
“资源描述框架”（Resource Description Framework（RDF））是一个建模系统，该系统具有解决这种元数据交换的一些功能。
Resource Description Framework (RDF) is a modeling system with some facilities for addressing just such metadata exchange.
在低层框架上构建应用逻辑层，并用元数据文件描述模块功能。
Application logic layer was established in lower layer frame, function module was described with metadata file.
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